公开(公告)号：US10174788B2

公开(公告)日：2019-01-08

申请号：US15408180

申请日：2017-01-17

Applicant: ROLLS-ROYCE plc

Inventor： Paul Fletcher ,  Paul Wilson

IPC: F16C19/54 ,  F16C25/06 ,  F16C32/04 ,  F16C41/00 ,  F16C19/52 ,  F16C25/08

Abstract: A bearing arrangement comprising: a first bearing including a first inner race coupled to a rotatable component, a first outer race; and a plurality of first roller elements between the first inner race and the first outer race; a second bearing including a second inner race coupled to the rotatable component, a second outer race, and a plurality of second roller elements between the second inner race and the second outer race; a component, the first outer race being axially moveable relative to the component; and a member between the first bearing and the second bearing and arranged to provide an indirect first force on the first outer race to prevent the first roller elements from skidding when the first bearing and the second bearing receive a second force in a first direction, the second bearing being configured to transfer the second force to the component.

公开(公告)号：US11566563B2

公开(公告)日：2023-01-31

申请号：US17016510

申请日：2020-09-10

Applicant: ROLLS-ROYCE plc

Inventor： Paul Wilson

IPC: F02C7/06 ,  F02C7/36

Abstract: There is disclosed an arrangement for separating an air-oil mixture in an oil distribution system of an engine. The arrangement comprises a distribution channel of the system, which defines a fluid flowpath suitable for receiving the air-oil mixture, and an ultrasonic transducer configured to insonate the fluid flowpath.